artemsion: samba, flakpak, palatine-hill: act-runner, samba, nextcloud

- adds happy 17th AO3 skin
- removes zen kernel from artemision
- adds flatpak to artemision
- adds samba client to artemision
- add samba import for palatine-hill
- fix formatting on act-runner
- fix nextcloud pre-generation script to use new image scheme

Signed-off-by: ahuston-0 <aliceghuston@gmail.com>

systems/artemision/configuration.nix

@@ -31,7 +31,7 @@
   };
 
   boot = {
-    kernelPackages = lib.mkForce pkgs.linuxPackages_zen;
+    #kernelPackages = lib.mkForce pkgs.linuxPackages_zen;
     useSystemdBoot = true;
     default = true;
   };
@@ -44,6 +44,7 @@
   sops.age.sshKeyPaths = [ "/etc/ssh/ssh_host_ed25519_key" ];
 
   services = {
+    flatpak.enable = true;
     calibre-web = {
       enable = true;
       listen = {